祁东矿几个主采煤层都上覆一层近距离不采自燃煤层。随着工作面的回采,上部不采自燃煤层冒落到下部煤层采空区内,给采空区带来安全隐患。为了解决这个问题,通过分析近距离煤层采空区防灭火存在的问题,找出采空区危险因素,同时提出一套适合祁东矿的综合防灭火技术措施。 Several main coal seams in Qidong ore are overburden with no spontaneous combustion of coal seam. With the mining face, the upper part of the coal spontaneous combustion does not take off to the lower part of the coal mined area, to the gob brought security risks. In order to solve this problem, by analyzing the existing problems of fire prevention and extinguishment in the mined-out area near coal seams, the risk factors of the mined-out area are found out and a set of comprehensive fire prevention and control measures suitable for the Qidong Mine is proposed.